From the Wikipedia page 
Radom County (Polish: powiat radomski) is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat is the city of Radom, although the city is not part of the county (it constitutes a separate city county). The county contains three towns: Pionki, 22 km (14 mi) north-east of Radom, Iłża, 27 km (17 mi) south of Radom, and Skaryszew, 12 km (7 mi) south-east of Radom.
Apart from the city of Radom, Radom County is also bordered by Białobrzegi County to the north, Kozienice County to the north-east, Zwoleń County to the east, Lipsko County to the south-east, Starachowice County to the south, Szydłowiec County to the south-west and Przysucha County to the west.